Read this article in the Guardian by GrrlScientist:

Listen to a radio interview at Vroege Vogels (in Dutch), from June 2015.

Source: Vroege Vogels

Together with Willem-Pier Vellinga, Sander Pieterse and Jonathon Jongsma, I run xeno-canto.org, the world's largest community database of bird song. It currently features about 330,000 recordings of more than 9,600 species of birds, shared by over 3,300 recordists from around the globe. It is probably the collection with the greatest number of bird species on record on the planet. It is generously supported financially by the Naturalis Biodiversity Center. Recordings have been used in over 1000 publications (Google Scholar count, Nov 2016). Recordings are used for surveys, taxonomic descriptions, conservation work, behavioural and evolutionary analyses, and also for automated recognition purposes. There are many apps using XC recordings, including BlueBill, Vogelgeluiden, BirdSounds, Bird Calls, Binatra, Birds of New Zealand, Birds of North America and others.

If you have made any recordings of birds, consider sharing these on xeno-canto. Registration is free!